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28 #ifndef DatabaseThread_h
29 #define DatabaseThread_h
31 #include "platform/WebThreadSupportingGC.h"
32 #include "platform/heap/Handle.h"
33 #include "wtf/Deque.h"
34 #include "wtf/HashMap.h"
35 #include "wtf/HashSet.h"
36 #include "wtf/OwnPtr.h"
37 #include "wtf/PassOwnPtr.h"
38 #include "wtf/PassRefPtr.h"
39 #include "wtf/RefPtr.h"
40 #include "wtf/ThreadSafeRefCounted.h"
41 #include "wtf/ThreadingPrimitives.h"
48 class MessageLoopInterruptor;
49 class PendingGCRunner;
50 class SQLTransactionClient;
51 class SQLTransactionCoordinator;
52 class TaskSynchronizer;
54 class DatabaseThread : public ThreadSafeRefCountedWillBeGarbageCollectedFinalized<DatabaseThread> {
56 static PassRefPtrWillBeRawPtr<DatabaseThread> create() { return adoptRefWillBeNoop(new DatabaseThread); }
62 bool terminationRequested() const;
64 void scheduleTask(PassOwnPtr<DatabaseTask>);
66 void recordDatabaseOpen(Database*);
67 void recordDatabaseClosed(Database*);
68 bool isDatabaseOpen(Database*);
70 bool isDatabaseThread() { return m_thread && m_thread->isCurrentThread(); }
72 SQLTransactionClient* transactionClient() { return m_transactionClient.get(); }
73 SQLTransactionCoordinator* transactionCoordinator() { return m_transactionCoordinator.get(); }
78 void setupDatabaseThread();
79 void cleanupDatabaseThread();
80 void cleanupDatabaseThreadCompleted();
82 OwnPtr<WebThreadSupportingGC> m_thread;
84 // This set keeps track of the open databases that have been used on this thread.
85 // This must be updated in the database thread though it is constructed and
86 // destructed in the context thread.
87 WillBeHeapHashSet<RefPtrWillBeMember<Database> > m_openDatabaseSet;
89 OwnPtr<SQLTransactionClient> m_transactionClient;
90 OwnPtrWillBeMember<SQLTransactionCoordinator> m_transactionCoordinator;
91 TaskSynchronizer* m_cleanupSync;
93 mutable Mutex m_terminationRequestedMutex;
94 bool m_terminationRequested;
99 #endif // DatabaseThread_h